OOIR: Observatory of International Research

Papers

(The TQCC of Linear & Multilinear Algebra is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
Scaffoldings of totally positive matrices and line insertion	24
Hadamard product and related inequalities in the Jordan spin algebra	21
The q-derivative formula and determinant identities	16
Square roots of complex symmetric operators	15
Matrices over commutative rings as sums of higher powers	14
The incomplete matrix beta function and its application to first Appell hypergeometric matrix function	13
Exponential stability of switched block triangular systems under arbitrary switching	12
A decomposition of matrix-valued H ² -functions	11
Weyl-type theorems for hypercyclic and supercyclic operators	11
Essential connectivity and spectral radius of graphs	11
On the signless Laplacian spectrum of k -uniform hypergraphs	10
On simple evolution algebras of dimension two and three. Constructing simple and semisimple evolution algebras	10
On special H -matrices based on Beauwens condition	10
Fredholm theory on Krein spaces and its application to pseudospectrum	9
New backward error bounds of Rayleigh–Ritz projection methods for quadratic eigenvalue problem	9
On a question of Bhatia, Friedland and Jain II	8
Some inequalities for bounds of joint δ -numerical radius and joint δ -Crawford number functions	8
Local derivations on the Lie algebra W (2, 2)	8
On subdirect sums of Nekrasov matrices	8
Quasi-radial operators on the Fock space and C* -algebras of entire functions	8
Forms of biisometric operators and biorthogonality	7
On semimonotone matrices of exact order two	7
Almost full rank matrices arising from transitive tournaments	6
On exp(Der(E)) of nilpotent evolution algebras of maximal nilindex	6
The Ihara expression of a generalization of the weighted zeta function on a finite digraph	6

Formulas for the eigendiscriminants of ternary and quaternary forms	6
Further properties and representations of the W -weighted m -weak group inverse	6
Existence of flipped orthogonal conjugate symmetric Jordan canonical bases for real H -selfadjoint matrices	6
A strict inequality on the energy of edge partitioning of graphs	6
An efficient approach for enclosing the solution set of the interval coupled Sylvester matrix equations	6
Countably many asymptotic tensor ranks	6
The tan Θ theorem for definite matrix pairs	6
Some classes of nonsingular tensors and application	5
A new invariant for cyclic orbit flag codes	5
Pseudospectral mapping theorem for quaternionic operators	5
Real Schur norms and Hadamard matrices	5
Characterizations of Lie centralizers of triangular algebras	5
The solution of the large-scale differential Sylvester matrix problems by extended nonsymmetric block Lanczos algorithm	5
The -positive semidefinite matrices A such that are nonsingular	5
On the numerical index of the real two-dimensional L _p space	5
Some applications of eigenvalues of unitary Cayley graphs of matrix rings over finite fields	5
Symmetric perimeters of completely positive Boolean matrices and their preservers	5
On singular pencils with commuting coefficients	4
On the solution of the Yang–Baxter–like operator equation on Hilbert spaces	4
Coherence invariant maps on order-3 symmetric tensors	4
Characterization of matrices satisfying the reverse order law for the Moore–Penrose pseudoinverse	4
Proof of a conjecture on the determinant of the walk matrix of rooted product with a path	4
Quaternionic essential numerical range of complex operators	4
Further results on weighted core inverse in a ring	4
A Kantorovich type inequality for positive matrices	4
Leibniz algebras and graphs	4
New multiplicative perturbation bounds on orthogonal projection	4
Chollet's permanent conjecture for 4 × 4 matrices	4
On binary relation of dual core generalized inverses	4
Nice operators and nice spaces	4
Unitary equivalences for k -circulant operator matrices with applications	4
Graphs with the minimal Laplacian coefficients	4
Characterization of C-symmetric Toeplitz operators for a class of conjugations in Hardy spaces	4
On resistance matrices of weighted balanced digraphs	4
Operator radius inequalities for Hilbert space operators	4
Joint numerical radius distance preservers on C *-algebras	4
Quantum injectivity of g-frames in finite dimensions	4
Further results on strongly core orthogonal matrix	3
Signed graphs whose all Laplacian eigenvalues are main	3
Modified CRI iteration methods for complex symmetric indefinite linear systems	3
On commutators of idempotents	3
L-structure least squares solutions of generalized reduced biquaternion matrix equations with applications	3
Correction	3
Sum of two strictly n -zero matrices	3
Convex inequalities in Hilbert C *-modules	3
The semi-Fredholmness and property (ω) for 2×2 upper triangular operator matrices	3
An orthogonality relation in complex normed spaces based on norm derivatives	3
G-Drazin inverse combined with inner inverse	3
Some notes on the energy of graphs with loops	3
On a class of functions of two non-commuting matrices: general properties, Fréchet derivatives and conditioning	3

Maximal border subrank tensors	3
2-Local derivations on the Schrödinger-Virasoro algebra	3
Advancements in the generalization of m -isometries: introducing the q -partial-( m, A )-isometry class	3
Trigonometric determinants via special values of Dirichlet L -functions	3
Bott-Duffin group inverse	3
Spectral properties of linear operators on a Hilbert space	3
On a norming property of subspaces of a Banach space and some applications	3
New unitary equivalences for some operator matrices with applications	3
On Sinkhorn's DAD theorem and the self-consistency equation in COSMO-based activity coefficient models	3
Inequalities for partial determinants of positive semidefinite block matrices	3
Correction	3
Algebraic technique for mixed least squares and total least squares problem in the reduced biquaternion algebra	3
Non-weight modules over a Schrödinger-Virasoro type algebra	3
On decomposition of left-right Atkinson linear relations and related classes	3
On the closure of absolutely norm attaining operators	3
Euclidean and circum-Euclidean distance matrices: characterizations and interlacing property	3
The spectra of graphs based on general graph operations	2
The set of stable indices of 0–1 matrices with a given order	2
Characterization of graphs whose Laplacian eigenvalue 1 has multiplicity 2 c ( G ) +	2
Weighted generalized core–EP inverse	2
A metric function for dual quaternion matrices and related least-squares problems	2
Characterizing the additive separability of operator generalized inverses	2
A bound on the rank of weighted graphs in terms of girth	2
Decay estimates of Green's matrices for discrete-time linear periodic systems	2
A generalized Wigner–Yanase skew information	2
On von Neumann algebras consisting of complex symmetric operators	2
High relative accuracy for rational q-Bernstein–Vandermonde matrices	2
Generalized Locally Toeplitz matrix-sequences and approximated PDEs on submanifolds: the flat case	2
Commuting maps on idempotents and functional identities on finite subsets of fields	2
When is a product of EP elements again EP?	2
Norm and numerical radius inequalities for operator matrices	2
Strong commutativity preserving maps on rank k strictly triangular matrices	2
On a question of Erdős on doubly stochastic matrices	2
Maximal numerical range of tensor product of two operators	2
Invariant cones for actions of semigroups in Sl( d , ℝ) and controllability of bilinear control systems	2
On limiting probability distributions of higher order Markov chains	2
Transformations preserving the effective spectral radius of a matrix	2
Distinct eigenvalues are realizable with generic eigenvectors	2
The generalized Brauer–Ostrowski theorem for matrices of operators	2
Inseparable Gershgorin discs and the existence of conjugate complex eigenvalues of real matrices	2
Sampling expansions associated with quaternion difference equations	2
On the extreme eigenvalues and asymptotic conditioning of a class of Toeplitz matrix-sequences arising from fractional problems	2
The projection m -weak group inverse	2
Exposedness of elementary positive maps between matrix algebras	2
Sharp lower bounds for the Laplacian Estrada index of graphs	2
On the two-sided removal and cancellation properties associated with selfadjoint operators	2
Approximating the closest structured singular matrix polynomial	2
On computing HITS ExpertRank via lumping the hub matrix	2
A quadratic operator equation and a non-commutative uncertainty relation	2
Generalized Drazin-meromorphic invertible operators and Browder type theorems	2
Matrices with rotation and/or reflection invariant higher rank numerical ranges	2
A new approach to MacMahon’s Partition Analysis and associated applications	2
On determinants involving tangent functions	2
Inequalities for products of singular values of matrices	2
Divisibility among power matrices associated with multiplicative functions	2
Spectral extremal problem of the p th power of cycles	2
A generalization of core-nilpotent endomorphisms in infinite-dimensional vector spaces	2
Commutator widths of general linear groups over local rings	2
Perturbations of tempered spectra	2
Nilpotent linear spaces in M ₄ ( F )	2
Fixed point groups of involutions of type O(q, k ) over a field of characteristic two	2
Preservers of of pseudospectra of matrix skew products	2
A note on numerical ranges of tensors	2
Bialternant formula for Schur polynomials with repeating variables	2
A study of local symmetry of Birkhoff–James orthogonality in Banach spaces	2
r -invertible matrices over commutative semirings	2
Approximating the phi-function action on linear combinations of Krylov bases	2
Linear operators and construction of symmetric symbols satisfying sum rules of order p	2
The normalized Laplacian spectrum of n -polygon graphs and applications	2
The Moore–Penrose inverses of unbounded closable operators and the direct sum of closed operators in Hilbert spaces	2
Diameter of the BJ -orthograph in finite-dimensional C *-algebras	2
Endomorphisms of the riordan group, some new facts	2
SJ -class operators and supercyclicity	2
q-Numerical radius inequalities for Hilbert space	2
Extremal marginals of an unbounded local completely positive and local completely contractive map	2
Some properties of the q -numerical radius	2
Partition reduction method for norm estimation of H-matrices and their subclasses with applications in linear complementarity problems	2
Classification of graphs by Laplacian eigenvalue distribution and independence number	2